Clutch device.



I. S. WHISLBR. GLUI'GH nnvmn.

. uruouzon riLnn JULY 28, 1911. 1,015,254,

Patented m. 16, 1912.

WITNESSES:

I INYENTOR W IsMA 8. Wuzsnzsn.

7 v v ATTORNEY 2 SHEETS-SHEET 1. V

' I. s. WHISLER.

CLUTCH DEVICE.

APPLICATION FILED JULY 28, 1911. 1,015,254.

2 SHEETS-SHEET 2.

wlfzvsssss:

IN VEN TOR v BY I ATTORNEY Patented Jan. 16,1912.

ED STATES ratriinar OFFICE.

isna s. wnrsI-nn, or nnwoasrnr, INDIANA, ASSIGNOR or ONE-HALF IO LEONARD DANIEL, OF NEWCASTLE, INDIANA.

CLUTCH DEVICE.

Specification of Letters Patent. Application filed July 2 8, 1911. Serial No. 641,098.

Patented Jan. 16, 1912.

. To all whom it may concern-:-

useful in transmission gearing whereby the operation of the driven shaft may be con trolled in an improved manner; specific purposes being to overcome the necessity in transmission gearing of the use of fr1ct1on wheels, rings and the like and of sllding or shifting gear wheels; and to provlde a device of the kind. described that will be compact, reliable and durable, and economical of manufacture. v

The objects of the invention are accomplished by the mechanism described In thls specification and illustrated in the accompanying drawings, and the inventlon is defined by the appended claims.

In the drawings the several parts of the invention are identified by similar characters of, reference throughout the, different views, in which- Figure 1 is an end'view of my improved transmission gearing, in which my inven tion is shown, a portion of the easement being broken away. Fig. 2 is a sectional plan view taken on the line 22 in Fig. 1. Fig. 3 is a view of the invention, as shown in Fig. 2 several parts however being in shifted position. Fig. Lisa vertical sectional view taken on the line 44 in Fig. 2. Fig. 5 is a vertical sectional view taken on the line 55 in Fig. 3, in the latter view thegear wheel being shown in shifted position.

In this specification of my invention, a gearing is shown wherein two speeds of the driven shaft may be had. A casement A of the simple and compact construction shown, may be used and is provided with a suitable cap plate B. Secured to the usual driving shaft C which is journaled in the bearings A are the ar wheels D and El Gear wheels F and correspondin to and adapted to mesh with the gear whee SD and E resp'ect-ivel are carried loosely on the driven shaft and are held against longitudinal movement thereon by the walls of the easement. In the bore of the gear wheel F and of the gear wheel G are the similar concentric grooves or recesses F semi-circular in cross section.

and Gr H designates a central bore in the driven shaft and which bore is'terminated in the form of the bore H of smaller diameter. 1n radlal apertures or openings H which extend from the bore H and throu h the walls of the driven shafb are disposed oosely the similar steel balls designated as J and J. The longitudinal distance between the centers of these apertures H is the same as the longitudinal distance, center to center, between the grooves F and G.

K designates a plunger disposed slidingly in the bore H. A stem L secured to this plunger has its center coincident with the axial center of the driven shaft and its end will rest slidingly in the bore H Secured to the stem at a proper location is a projector head M. This projector head is of a diameter to fit slidingly in thebore H its ends being tapered down to the diameter of the stem L. From each of the openings H and at a point near the periphery of the- Small helical springs P contained in the said bore's serveto press these clicks outwardly and against the steel balls whereby the lat ter though free to move outwardly by force operated from within the bore H are held normally retracted to the positions as shown in Fig. 2, against the stem L and just inside of the periphery of the driven shaft H.

Q and R desi ate collars secured by set screws Q and a to the driven shaft to prevent longitudinal movement thereof in its bearings A. Each of the bosses' R formed integral with the collar R is provided with a bore which registers with a hole in the wall of the shaft H. In the uideway thus formed is slidingly disposed t e detent S its inner end being rounded inform to fit in one of the three similar peripheral grooves marked K K and K of the plunger. These detents are held in engagement with the said groove by the springs T which are retained in said bosses R by the caps R. a 1

.held against longitudinal movement in the bore HPby the detents S. Retained loosely but held against longitudinal movement on the-outer end of the plunger K is a sleeve to which shifting; means may be connected.

This sleeve is composed of matched halfrings U having the studs U and being secured together by bolts U and resting loosely on the necli K of the plunger. An arm A formed integral with the casement- A affords a support upon which a hand lever V is pivotally supported and whose lower and forked end engagesfthe studs U 0n the said sleeve.

With the several parts of the device at the relative positions as shown in 2, the balls J and J being held at retracted position; the gear wheels F and G will be driven idly on the shaft H. The plunger K is retained at normal neutral position by the detents S. To operate the shaft H at the higher speed the plunger is moved forwardlyto where the detents.S engage the groove K As shown in Fig. 3 the pro-' jector head twill have assed between and moved the balls J radially and into occupancy of the grooves F There being thus an abutting contact between the balls and I the ends of the grooves F established, as

shown in Figs. 3 and 5, the motion of the wheel F is imparted to the-shaft H. With a returning of the plunger to the neutral position there being no support for the balls they are moved back by the ends of the grooves F to retracted position and are there held against displacement by the spring pressed clicks 0. To. operate the shaft H at the lower speed the plunger is shifted rearwardly to where the detents S engage the groove K The projector head M will have assed between and protruded the balls-'J into occupancy of the grooves Gr in the bore of the wheel G, the result being that motion is imparted to the shaft H in the manner hereinbefore described.

By virtue of my present invention a self contained compactand closely built transmission gearing is afforded wherein the driven shaft may' be easily rendered opera tive or inoperative. The number of parts is reduced to a minimum and they are so constructed, combined and arranged as to mutually brace each other. The device is rugged and durable, not liable to get out of.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a clutch device, the combination of a shaft, a wheel mounted loosely on said shaft, a-bore in said shaft, a recess in the bore of the wheel, an opening leading from the bore of the shaft and to register with said recess, a plunger disposed slidingly in the bore of the shaft, a stem in said lunger, a projector head on said stem, a ballhn said opening, means to yieldingly retain the ball at retracted position.

2. In a clutch device, the combination of a shaft, a wheel mounted loosely on said shaft, a bore in said shaft, a recess in the bore of the wheel, an opening leading from the bore ofthe shaft and to register with said recess, a plunger disposed slidingly in the bore of the shaft, a stem in said plunger, a ball in said opening, a projector head on said'stem which when moved longitudinally will protrude the ball from the opening, means to yieldably retain the ball at retracted position, and means supported by *the shaft to yieldably hold the plunger against longitudinal movement.

'3. In a clutch device, a shaft, a wheel mounted loosely thereon, a bore in the shaft, a recess in the bore of the wheel, an opening leading from the bore of the shaft and to register with the said recess, a plunger movable slidingly in the bore of the shaft, a stem in the plunger, a ball in the said opening, and means to yieldably retain the ball in the opening and against the stem.

4. In a clutch device, the combination of a shaft, a wheel mounted loosely thereon, a bore in the shaft, a recess in the bore of the wheel, an opening leading from the bore of the shaft and to register with the said recess,

a ball in said opening, means to yieldably retain the ball against escapement from the said 0 ening, and means operable in the bore of the shaft to protrude the ball and retain it atengagement with the recess in the bore of the wheel.

In testimony whereof I aflix my signature in presence of two witnesses.

I ISMA ,S. WHISLER. 

